| 单词 | myelinated |
| 例句 | The very last part of the brain to get myelinated is the prefrontal cortex—the part of the brain responsible for reason, planning, and deliberation. The 57 Bus 2017-10-17T00:00:00Z Additionally, the myelinated regions transmit electrical signals at a very high speed, as an ordinary conductor or resistor would. College Physics for AP Courses 2015-08-12T00:00:00Z The action potential is then propagated along a myelinated axon to the axon terminals. Biology for AP Courses 2022-06-09T00:00:00Z In myelinated axons, propagation is described as saltatory because voltage-gated channels are only found at the nodes of Ranvier and the electrical events seem to “jump” from one node to the next. Anatomy and Physiology 2013-06-19T00:00:00Z Among them are how Heimburg's model accounts, quantitatively, for the increased velocity of conduction in myelinated axons and the mechanism by which it leads to transmission across a chemical synapse. Readers Respond to the April 2018 Issue 2018-08-03T04:00:00Z They are not fully myelinated until people are in their twenties, or even thirties. Why Teen-Agers Are the Worst 2015-08-31T04:00:00Z There is no action potential in the myelinated regions, so that no cell energy is used in them. College Physics for AP Courses 2015-08-12T00:00:00Z One axon can be myelinated by several oligodendrocytes, and one oligodendrocyte can provide myelin for multiple neurons. Biology for AP Courses 2022-06-09T00:00:00Z Saltatory conduction is faster than continuous conduction, meaning that myelinated axons propagate their signals faster. Anatomy and Physiology 2013-06-19T00:00:00Z The auditory nerve contains myelinated fibers, which are used to perceive loudness and to process speech, as well as unmyelinated ones. When Everyday Noise Is Unbearable 2014-12-01T05:00:00Z And like the forebrains of young females, those of young males are not fully myelinated until the late 20s or even early 30s. Why Are Mass Killers Always Male? 2014-05-25T04:00:00Z So a myelinated axon transmits a nerve impulse faster, with less energy consumption, and is better protected from cross talk than an unmyelinated one. College Physics for AP Courses 2015-08-12T00:00:00Z In proprioception, proprioceptive and kinesthetic signals travel through myelinated afferent neurons running from the spinal cord to the medulla. Biology for AP Courses 2022-06-09T00:00:00Z Propagation along an unmyelinated axon is referred to as continuous conduction; along the length of a myelinated axon, it is saltatory conduction. Anatomy and Physiology 2013-06-19T00:00:00Z White matter is made up of the myelinated axons of neurons that connect different brain regions and provides highways for communication between those regions. Can a Mnemonic Slow Memory Loss with Age? 2014-03-20T21:17:18Z When people acquire new skills, from juggling to playing computer games, the structure of specific myelinated regions of their brains changes. Neuroscience: Map the other brain 2013-09-05T20:20:29.767Z Not all axons are myelinated, so that cross talk and slow signal transmission are a characteristic of the normal operation of these axons, another variable in the nervous system. College Physics for AP Courses 2015-08-12T00:00:00Z Both processes are influenced by experience — underused nerve fibres are pruned, whereas others are myelinated — so they occur at different rates and times in different people. Brain Connectivity Predicts Reading Skills 2012-10-09T14:45:09.213Z Because the sympathetic ganglia are adjacent to the vertebral column, preganglionic sympathetic fibers are relatively short, and they are myelinated. Anatomy and Physiology 2013-06-19T00:00:00Z The main function of white matter, composed of glial cells and myelinated axons, is to pass messages between different grey matter areas. The story of a lonely brain 2012-10-01T23:15:06.163Z This new research shows that one important factor determining whether an axon gets myelinated is whether it is functionally active. Genius across Cultures and the `Google Brain' 2011-08-21T12:45:05.963Z Figure 20.34 Propagation of a nerve impulse down a myelinated axon, from left to right. College Physics for AP Courses 2015-08-12T00:00:00Z Number of Highway Lanes and Diameter of Axons One important property of neuronal axons is that many of them are myelinated. Mathematics, Cities, and Brains: What Can A Highway Engineer Learn From A Neuroscientist? 2011-08-18T21:15:00.250Z The word means “bridge” and refers to the thick bundle of myelinated axons that form a bulge on its ventral surface. Anatomy and Physiology 2013-06-19T00:00:00Z The various kinds of tracts have different times for becoming "myelinated" as was the discovery of the great analogist, Flechsig. The Foundations of Personality Explain the properties of myelinated nerves in terms of the insulating properties of myelin. College Physics for AP Courses 2015-08-12T00:00:00Z The signal travels very fast and without energy input in the myelinated regions, but it loses voltage. College Physics for AP Courses 2015-08-12T00:00:00Z |
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